From 7c254e5e15067d3bef234e5419b0dabd7207d2ea Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Tue, 8 Aug 2023 10:27:19 +0200
Subject: [PATCH] kernel: Properly check memory bounds in strdup_from_user()

Missed this one in 097353e779.
---
 kernel/src/memory/MemoryManager.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/src/memory/MemoryManager.cpp b/kernel/src/memory/MemoryManager.cpp
index d597f397..abbdec06 100644
--- a/kernel/src/memory/MemoryManager.cpp
+++ b/kernel/src/memory/MemoryManager.cpp
@@ -508,7 +508,7 @@ namespace MemoryManager
         {
             TRY(result.try_append(*(char*)address));
             address++;
-            if (address % ARCH_PAGE_SIZE)
+            if ((address % ARCH_PAGE_SIZE) == 0)
             {
                 if (!validate_page_access(address, MMU::User)) return err(EFAULT);
             }